Snow-excavator



(No Model.)

D. P. BIER.

l SNOW BXGAVATOR. No. 425,365. Y Patented Apr. 8, 1890.

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UNITED STATES PATENT EErcE- DANTIIUS PHILETUS BIER, OF IVOODINVILLE, WASHINGTON, ASSIGNOR- OF ONE-HALF TO H. M. BUROHARD, OF MARSHALL, MINNESOTA.

sNow-ExoAvAToR.

SPECIFICATION forming part of Letters Patent No; 425,865, dated April 8, 1890. Application filed December 23, 1889. Serial No. 334,662. (No model.)

Io skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

15 Figure l of the drawings is a side elevation.

Fig. 2 is a plan top view. Fig. 3 is a sectional detail view.

This invention has relation to certain improvements on the snow-excavator patented zo October 16, 1883, and numbered 286,895; and

it consists of the combination of the parts and their novel construction, as willfully appear from the following description and illustration.

In connection with my invention I employ a frame A, carrying at its front end a rotary drum B, armed with a series of peripheral transverse cutters intersected at right angles by a series of circumferential flanges c c, di-

3o viding up the periphery of the drumwith numerous pockets d d. In the present invention, however, I arrange upon the frame A, immediately in rear of the excavating-drum B, a closure or casing C, adapted to receive 35 the snow from the latter, being open at the side, and in this closure or case is arranged a rotary fan D. The fan D is hung or journaled about centrally in the closure or casing' A upon a longitudinal shaft a, and is curved 4o or deiiected upward and outward at each end and upon each side, permitting operation in either direction. The shaft ais suitably supported or hung in cross-pieces at the ends of the casing A, and is driven by bevel gearone secured upon the rear end of said shaft and engaging either of the other two fitted upon a transverse shaft c', supported upon the frame A.

The mechanism for shipping the wheels b 5o b may be of any of the ordinary forms used for shipping gearing. The shaft c has on its ends sprocket-wheels c c, which are encompassed by endless belts or chains d d', also encompassing similar wheels e on the ends of the shaft of the excavating-drum B.

E is another transverse shaft suitably journaled upon the frame A, and has near one end a frictional wheel f, which has frictional contactwith a frictional wheel f on the shaft c. The shaft E has also on its ends sprocketwheels g, the function of which will herein after appear.

To the rear edges of the case or closure on each side of its rear opening are hung or pivoted two deflectors or wings F, each of which forms a rear extension of the casing A, and to the rear edges of which are pivoted the outer ends of jointed or sectional rods h, the inner ends of which are pivoted to the closure or casing A some distance inward from the rear end of the latter. These sectional or jointed rods h are connected together by an inieXible rod i, having its ends connected thereto at the joints or points of flexure between the sections of said rods 71,. From this construction it will be seen that primarily a deflector or extension is thus provided for either rear edge of the casing A, and that the action of the snow upon the wing or deiiector at the side edge against which the snow is thrown, iiying from the fan, will extend or throw outward that wing or deflector, and direct and throw the snow thereby to one side beyond the track. also that when the aforesaid ap or deflector is extended the opposite deflector or flap is drawn inward by the action of the jointed or sectional rods for the full clearance of that edge by the snow as it is deflected or thrown out and past this edge of the casing or closure. It will be seen that this action of the wings or deflectors will be reversed side for side of the casing or closure, according to the direction in which the fan may be revolving.

GG are additional or supplementary cutters, which are for use when the snow is of too great depth for the use of the cutter or drum B, and these cutters are arranged a short distance above the latter, being supported upon the frame A. The cutters G rco It will have been noticed each comprise radial arms j, having their outer ends armed With blades j and theirinner ends secured to a shaft 7o. These shafts lo are provided with Wheels Z, encompassed by an endless belt or chain Z. One of the shafts k has additional Wheels l, which are driven by endless belts or chains fm, receiving motion from the Wheel g g on the shaft E.

The shaft C is driven by belts or chains and pulleys (not shown) from an engine on a platform-car in rear of the machine.

Having thus fully described this invention, what I claim, and desire to secure by Letters Patent, is- A l. In a snow-excavator, the combination,

.with the casing or closure, the supplementary cutters, and means for driving said'cutters,

of the fan and means for driving the latter, substantially as set forth.

2. In a snow-excavator, the combination of the fan, and the closure or casing having at its rear edges pivoted deflectors or Wings, sectional or .jointed rods connected to 'saidcasing and deectors, and the inflexible rods connecting said sectional rods together, substantially as set forth.

' In testimony whereof Iafix my signature in presence of three Witnesses.

DANTHUS PHILETUS BIER. 

